JPH0811672B2 - Elevator driving equipment - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to an elevator operating device, and more particularly to an elevator operating device that changes an operating state by switching and using a car load detection value.

[Prior art]

In an elevator, as shown in, for example, Japanese Patent Laid-Open No. 62-259969, the operating state is switched according to the car load. The switching of the operating state depending on the car load includes full-occupancy control that performs full-passing operation when the car load detection value exceeds a preset reference value, and over-ride control that prevents door closing when overload load occurs. There is. The control of switching the operating state depending on the car load greatly contributes to the improvement of the operating efficiency and the safe operation of the elevator. On the other hand, in recent years, there are many demands to change the car load detection value according to the customer's preference, and therefore an elevator having a structure that meets this demand has been proposed. Here, considering the change of the car load detection value, it has the following great appeal. That is, when it is desired to use the car in a state where it is looser than the driving efficiency, it is possible to use the car in a state where there is more room than usual by lowering the override detection value.
Even in the full-occupancy detection, by lowering the detection value, it becomes possible to use the inside of the car in a state where there is more room than usual.

[Problems to be Solved by the Invention]

Conventional car load detection value switching is performed regardless of the actual car load state, so if the actual car load is greater than the override detection value switched to a low value, stop in response to a call. If you open the door by doing so, there will be a problem that you will not be able to restart if some passengers who are already on board do not get off, even if there are no passengers on board. Occurs. The present invention has been made to solve the above problems, and even if the car load detection value is switched, an inconvenience such as causing some passengers in the car to already get off the elevator does not occur. It is an object of the present invention to provide a driving device of.

[Means for Solving the Problems]

An elevator operating apparatus according to the present invention is provided with a switchability detection unit that detects a switchable condition and a switchable timing for a car load detection value, and the switchability detection unit is a switchability condition and a switchable timing for a car load detection value. The switching of the car load detection value is controlled only when it is detected that both conditions are satisfied.

[Action]

In the elevator operating apparatus according to the present invention, the switchability detection unit constantly monitors the car load and the car load detection value, and only when it is detected that both the switchable condition and the switchable timing are satisfied, the car load is detected. Since the switching of the detection value is permitted, the switching of the car load detection value is prevented in the state where the passengers are inconvenienced.

Examples of the invention

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a circuit diagram showing a main part of an elevator operating device, in which 1 is a stop detection contact that opens when the traveling of the car is stopped, and 2 is a car load detecting device that detects the actual load value of the car. Is. A control unit 3 is composed of a small computer and executes normal operation control processing of the elevator.
Further, the control unit 3 receives the stop detection signal supplied from the stop detection contact 1 and the actual load of the car from the car load detection device, and both the switchable condition and the switchable timing for the car load detected value are satisfied. Detect that
A switchability detection process for switching the car load detection value according to a command from the car load detection device 2 is executed. The control unit 3 includes an arithmetic unit (CPU) 4 that executes various arithmetic processes, a read-only memory 5 that stores an elevator control program and a processing program that determines whether or not a car load detection value is to be determined. , A write-only memory 6, an input device 7 for taking in signals supplied from the operation stop detection contact 1 and the car load detection device 2, and an output device 8 for sending out the control output of the elevator. Reference numeral 9 denotes various elevator devices controlled by the control unit 3. Next, the operation will be described. In the control unit 3 configured by the small-sized computer shown in FIG. 1, the arithmetic unit 4 executes the elevator control program stored in the read-only memory, and the arithmetic result is output through the output unit 8 to various elevator devices. 9 to supply normal control of the elevator. In addition, the arithmetic unit 4 executes interrupt processing at regular intervals for normal operation control,
A switchability detection process for determining whether or not the car load detection value stored in the read-only memory 5 can be switched is executed. The flow chart shown in FIG. 2 shows this switchability detection processing. For an elevator traveling at an actual car load of 90%, the overload detection value as the car load detection value is from 110%. It shows the case of switching to 80%. For example, in an elevator that is running with a real car load of 90%, traffic in the building may be quiet due to traffic conditions while the car is running, and the condition for using the elevator in a relaxed condition is satisfied, and the load detection value switching request for the car is requested. It is assumed that the overriding detection value is reduced from 110% to 80% by. The switchability determination process for the car load detection value is performed by repeatedly applying an interrupt to the normal elevator control process at regular intervals by a program process. Then, in step 10 of the flowchart showing the switchability determination process shown in FIG. 2, it is determined whether or not a car load detection value switching request is generated, and if there is no command, the process proceeds to step 18. . In step 18, the return process is performed without changing the overriding detection value. If the determination in step 10 is yes, that is, if it is determined that there is an overpass detection switching command, the process proceeds to step 11 and the output of the stop detection contact 1 is determined, so that the elevator is traveling. Determine whether or not. If the determination in step 11 is yes (running), it is not the timing at which the load detection value of the car can be switched.
The process proceeds to step S3 and returns without changing the overriding detection value. Next, for example, when traveling of the elevator is stopped in response to a car call, the stop detection contact 1 is opened. In the next interrupt process, if the determination in step 11 is NO, the process proceeds to step 12 to determine whether the door opening / closing has started. If the determination in step 12 is YES, the car load detection determination value Since it is a switchable timing, the process moves to step 15. If the determination result in step 12 is NO, the process proceeds to step 13 to determine whether the door opening / closing has started, and if the determination in step 13 is YES, the car load detection determination value can be switched. Since it is timing, the process proceeds to step 15. If the determination in step 13 is NO, the process proceeds to step 14 and it is determined whether or not the elevator is in a waiting room.
If the determination in 14 is yes, it is the timing at which the car load detection determination value can be switched, so the process proceeds to step 15. If the determination in step 14 is NO, it is the timing at which the car load detection determination value cannot be switched, and therefore the process proceeds to step 17 to perform return processing without changing the overriding detection value. . Next, at step 15, it is judged whether or not the actual car load input from the car load detection device 2 is less than or equal to the new overpass detection value commanded by the car load detection value switching request command. If the determination in step 15 is NO, switching the over-ride detection value in this state causes a problem that an over-ride warning is issued even though the passenger does not board. The process proceeds to step 17, and the return process is performed without changing the overriding detection value. If the determination in step 15 is affirmative, the process proceeds to step 16 to execute the process of switching the override detection value to a new override detection value based on the switching command, and then the process proceeds to step 19. . In step 19, the process is performed in which the overriding detection value is not changed until the overriding detection value is switched thereafter, and then the process returns. That is, in this case, when the elevator is stopped in the state where the switching command for the overriding detection value is generated, and the elevator door opening / closing control is either door opening / closing start, door opening / closing start, or door closing standby. If the actual car load is less than the new overpass detection value specified by the switching command generated from the car load detection value switching request, the switchable condition is There is. And only when this switchable condition is detected,
A process of switching to a new over-ride detection value designated by the switching command generated from the over-ride detection value load detection value switching command is executed. Then, if the overpass detection value is switched when the switchable condition is detected, no inconvenience is given to passengers. In the above embodiment, the switchable timing is described as the door opening and closing start, the door closing start, and the door closing standby, but the switchable condition that does not cause inconvenience to passengers is clearly defined while the elevator is stopped. Any timing may be used as long as it is timing. When the elevator load is stopped and the car load cannot be switched even if the determination process of the switchable condition by the interrupt process is repeated, the car load detection value is detected when the number of times is counted and the predetermined value is reached. It is also possible to forcibly execute the switching process. Further, in the above embodiment, the case where the car load detection value is switched according to the traffic situation has been described, but it is also possible to manually switch the car load detection value according to the customer's request.

【The invention's effect】

As described above, according to the present invention, the switchable timing and the switchable condition are specified, and the car load detection value can be switched only when both the specified conditions are satisfied. As a result, even under any condition, even if the instruction to switch the car load detection value is issued, the occurrence of a situation inconvenient for passengers can be completely prevented.

[Brief description of drawings]

FIG. 1 is a block diagram showing a main part of an elevator operating apparatus according to the present invention, and FIG. 2 is a flow chart showing an operation of a control unit shown in FIG. 1 is a stop detection contact, 2 is a car load detection device, 3 is a control unit, 4 is a calculation unit, 5 is a read-only memory, 6 is a write-only memory, 7 is an input device, and 8 is an output device. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A stop detection contact for detecting a stop of traveling of an elevator, a car load detection value switching command section for generating a car load detection value switching command, a stop detection signal output from the stop detection contact, and the car. A switchability detection means for determining whether or not the load detection value of the car can be switched is provided with a switching command generated from the load detection value switching command section as input, and the switchability detection means has a predetermined switchable timing and at the timing. An elevator operating device characterized in that the car load detection value can be changed only when it is detected that a switchable condition that does not cause inconvenience to passengers is satisfied.